In the Thermonuclear Process That Is Thought to Heat the Sun

question 127

Multiple Choice

In the thermonuclear process that is thought to heat the Sun, the nuclei of which chemical elements are converted to other nuclei to produce the requisite energy?

• A) Helium is converted to hydrogen.
• B) Iron is transformed to a series of lighter elements in chain reactions, leading eventually to hydrogen.
• C) Hydrogen is converted to helium.
• D) Uranium is converted to lead.

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Definitions:

Pons

A part of the brainstem that links the medulla oblongata and the thalamus, playing a critical role in the regulation of breathing, communication between different parts of the brain, and sensations.

Skeletal Muscle Activity

The contraction and relaxation of muscles attached to the bones, enabling movement and stability of the body.

Carotid Arteries

Major arteries located on each side of the neck that supply blood to the brain, neck, and face.

Vertebral Arteries

Arteries that supply blood to the upper part of the spine and brain.